What is nitrile rubber?
- Nitrile rubber is a copolymer obtained by emulsion polymerization of butadiene and acrylonitrile. It is called butadiene-acrylonitrile rubber, referred to as nitrile rubber, code-named NBR.
- Nitrile rubber has two types: high-temperature emulsion polymerization (25-50℃) and low-temperature emulsion polymerization (5-20℃). At present, low-temperature emulsion polymerization is mainly adopted. Nitrile rubber is known for its excellent oil resistance. As an oil rubber, it is widely used in the manufacture of oil-resistant products such as hoses, tapes, capsules, sealing products, gaskets, etc. In addition, it also has the characteristics of aging resistance, abrasion resistance, low air permeability and high cohesion.
Classification of nitrile rubber:
According to the scope of application, nitrile rubber is divided into general nitrile rubber and special nitrile rubber. General-purpose nitrile rubber mainly refers to butadiene-acrylonitrile binary copolymer, which has a wide range of uses. Special nitrile rubbers include terpolymers with the introduction of the third monomer plus hydroxy nitrile rubber, poly-stabilized nitrile rubber, partially cross-linked nitrile rubber, nitrile rubber, hydrogenated nitrile rubber, nitrile rubber and poly Blends of vinyl chloride, liquid rubber and powder rubber, etc.